S
M
T
W
T
F
S
26
85°
72°
27
86°
74°
28
85°
76°
29
86°
76°
30
87°
75°
31
85°
74°
1
86°
75°
2
87°
76°
3
87°
76°
4
88°
75°
5
88°
76°
6
87°
76°
7
87°
75°
8
88°
76°
9
87°
76°
10
86°
75°
11
87°
76°
12
87°
76°
13
88°
75°
14
87°
76°
15
87°
76°
16
88°
75°
17
90°
75°
18
92°
76°
19
91°
74°
20
92°
75°
21
88°
74°
22
91°
73°
23
91°
72°
24
90°
74°
25
91°
72°
26
91°
71°
27
89°
71°
28
88°
72°
29
90°
71°
30
89°
71°
31
89°
72°
1
90°
71°
2
87°
72°
3
89°
72°
4
90°
74°
5
91°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Slidell
Slidell's August 2026 forecast shows daily high temperatures ranging from 85° to 92°, with overnight lows between 71° and 76°. The average high for August is 88° with an average low of 74°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Slidell. See also: September | October | November.
